Home / 7,821.91-10,799.76-4,838.68

Finding the Fourth Proportional to 7,821.91, 10,799.76 and 4,838.68

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Solution

The fourth proportional to 7,821.91, 10,799.76 and 4,838.68 is: 6,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.91 : 10,799.76 = 4,838.68 : x
  2. Step 2: Convert to fraction form
    7,821.91/10,799.76 = 4,838.68/x
  3. Step 3: Cross multiply
    7,821.91x = 10,799.76 × 4,838.68
  4. Step 4: Simplify right side
    7,821.91x = 52,256,582.72
  5. Step 5: Solve for x
    x = 52,256,582.72/7,821.91
  6. Step 6: Final answer
    x = 6,680.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.